Home / 774,854.58-1,069,319.07-425,990.72

Finding the Fourth Proportional to 774,854.58, 1,069,319.07 and 425,990.72

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Solution

The fourth proportional to 774,854.58, 1,069,319.07 and 425,990.72 is: 587,878.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,854.58 : 1,069,319.07 = 425,990.72 : x
  2. Step 2: Convert to fraction form
    774,854.58/1,069,319.07 = 425,990.72/x
  3. Step 3: Cross multiply
    774,854.58x = 1,069,319.07 × 425,990.72
  4. Step 4: Simplify right side
    774,854.58x = 455,519,998,930.71
  5. Step 5: Solve for x
    x = 455,519,998,930.71/774,854.58
  6. Step 6: Final answer
    x = 587,878.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.